MAL-2026-17795

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/sol-mint-utils/MAL-2026-17795.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17795
Published
2026-10-11T13:49:30Z
Modified
2026-10-11T14:30:09Z
Summary
Malicious code in sol-mint-utils (RubyGems)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (2940bc600ade9f91afdc44ccc04cdab589d276b0504b3f12ffb4a4e827920bd9)

The gem ships a native-extension stub (extconf.rb) that gem install executes automatically, but no C/C++ sources accompany it and lib/sol_mint_utils.rb is an inert stub (defines VERSION and returns 'ok'). The README advertises an unrelated package name (bitcoin-rpc-lite), confirming the gem's declared purpose is a cover. extconf.rb base64-decodes a Ruby payload and eval's it inside a forked/detached process; the decoded payload opens a TCPSocket to the hardcoded host 45.138.12.177 on port 8089 and bridges a /bin/sh session over the socket via IO.popen and IO.copy_stream, granting the operator an interactive reverse shell on the installer's machine. Execution is gated by anti-analysis checks: CI environment variables, hostname patterns (uvm/firecracker/sandbox/vagrant), generated usernames, analysis working directories (/opt/rubygems, /tmp, /workspace), and short /proc/uptime values all suppress the payload, which fires only when developer artifacts such as ~/.ssh, ~/.gitconfig, and ~/.gem/credentials are present on the host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021373",
            "import_time": "2026-10-11T14:18:00.247314154Z",
            "modified_time": "2026-10-11T13:49:30Z",
            "sha256": "2940bc600ade9f91afdc44ccc04cdab589d276b0504b3f12ffb4a4e827920bd9",
            "source": "amazon-inspector",
            "versions": [
                "0.9.1"
            ]
        }
    ]
}
References
Credits

Affected packages

RubyGems / sol-mint-utils

Package

Name
sol-mint-utils
Purl
pkg:gem/sol-mint-utils

Affected ranges

Affected versions

0.*
0.9.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "ext/sol_mint_utils/extconf.rb",
            "sha256": "10218e975f54a4f11fe3954e1b584a5f05054003bf5773c3c2b8cceaa74ba763",
            "tlsh": "9751775acf8359e55aa1c0c045798012faa3ab0a50646875f3ee0868ff59b26c0f12fe"
        },
        {
            "path": "README.md",
            "sha256": "c11ea90465c14afe868c0d0028b54d69fbad390a73ddb7779e88becd2957d8f3",
            "tlsh": "b2c02b409c10f00783b09561bbc0019ba800c0cc9000c30b4874063cc0988518e65419"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/sol-mint-utils/MAL-2026-17795.json"